– Consists of two reinforced aluminum profiles that are mounted with five screws each, one on each part that we want to fasten (e.g., frame - sash).

– When locked, it fastens with two bolts, one at the top and one at the bottom, so that the resistance of the screws is distributed to all. This way, we achieve maximum burglar-proof security on every type of opening frame: single-leaf, double-leaf, aluminum, iron, wood, or PVC.

– We also use it for interior doors because, according to current conditions, safety takes precedence when we are inside the house.